Home / 139,264.04-192,164.10-79,636.52

Finding the Fourth Proportional to 139,264.04, 192,164.10 and 79,636.52

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Solution

The fourth proportional to 139,264.04, 192,164.10 and 79,636.52 is: 109,886.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,264.04 : 192,164.10 = 79,636.52 : x
  2. Step 2: Convert to fraction form
    139,264.04/192,164.10 = 79,636.52/x
  3. Step 3: Cross multiply
    139,264.04x = 192,164.10 × 79,636.52
  4. Step 4: Simplify right side
    139,264.04x = 15,303,280,192.93
  5. Step 5: Solve for x
    x = 15,303,280,192.93/139,264.04
  6. Step 6: Final answer
    x = 109,886.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.